Large roof lanterns in Horsham
We supply large roof lanterns to Horsham (RH12) and the rest of West Sussex: sized in millimetres to your upstand, priced up front and delivered on pallets. Fitting can be quoted separately if you need it.
Price a large roof lantern for Horsham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Large roof lanterns for Horsham homes
Lanterns of three metres and more for open-plan extensions, with intermediate rafters.
At 51.06°N, Horsham sees roughly 7h 54m of daylight in late December and 16h 33m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Lengths from about three to six metres
- Approximate weight given with your quote
- Solar-control glass recommended
Delivery and fitting in Horsham
Delivery to RH12 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Fitting in Horsham can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to RH12 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Large roof lantern prices for Horsham
What large roof lanterns cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1500 × 3000 mm | 4.50 m² | £2,595–£2,995£2,162 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 ex VAT from | Configure |
| 2500 × 4000 mm | 10.00 m² | £4,895–£5,695£4,079 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Horsham
In England, building regulations energy guidance sets a limiting U-value of 2.2 W/m²K for new and replacement rooflights in existing homes, measured horizontally.
On a permitted development extension the lantern counts towards the extension's height; on an existing roof, a rooflight projecting more than 150 mm may need planning permission.
Building regulations in Horsham are checked by your local authority building control team or a registered building control approver. Replacing a rooflight in an existing home is building work. Installers registered with a competent person scheme can self-certify; otherwise building control must be involved.
Sources: Approved Document L, GOV.UK · Planning Portal
Questions from Horsham
What is the biggest roof lantern you can supply?
It depends on the range. Some go to about 6 m by 4 m with intermediate rafters. Send us your kerb size and we will confirm what can be made.
Do large lanterns overheat a room?
A large area of south-facing glass can make a room warm on sunny days. Solar-control glass, an opening vent and good background ventilation all help. Our guide on overheating explains the options.
How quickly can I get a roof lantern in Horsham?
Stock sizes are typically ready in 5–10 working days, made-to-measure in 3–4 weeks, plus delivery. Your quote gives the date for RH12.
Do I need planning permission for a roof lantern in Horsham?
Often not, but it depends on the roof, the property and whether it is listed or in a conservation area. Check with your district, borough or unitary council before ordering.